Police in Tokyo's Adachi Ward have arrested a 42-year-old man on suspicion of abusing the six-year-old son of his common-law wife.
According to police, Akihiro Tamura repeatedly hit the boy in the face between May 19 and May 20. Sankei reported the boy is likely to be in hospital for a week.
Tamura was quoted by police as saying he became furious at the boy after he lied about doing his homework.
A neighbor noticed the boy's bruised face on the afternoon of May 20 and notified police, who visited the apartment on the morning of May 21 and found the boy home alone. The boy told police he had been beaten.
Tamura had been living with his common-law wife and her son since last October.© Japan Today